Ebenezer oliver



E. OLIVER. Riddle and Sieve.

Patented Nov'l I6, |880.

l r l (No Model.)

N4 PETERS, PHOTD-LITHOGRAPHEH, wAsmNCnoNy D C,

UNTTED STATES PATENT @Trient EBENEZER OLIVER, OF NEW YORK, N. Y.

lRIDDLE AND SIEVE.

SPECIFICATION forming part of Letters Patent No. 234,605, dated November 16, 1880.

Application filed April 3, 1880. (No model.)

To all whom it may concern:

Be it known that I, EBENEZER OLIVER, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Riddles and Sieves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, and to the letters of reference marked thereon', the same not having been to my knowledge heretofore patented in any foreign country.

My invention has special relation to that class of riddles or sieves ordinarily used for heavy work, such as in foundries, for ash-sifting, te., requiring great stability and durability of parts; but some of the special features of construction are equally applicable and advantageous in the lighter class of sieves, such as are used for household purposes and the like.

The most prominent object of my invention is to produce a riddle or sieve which shall be strong, durable, comparativelylight, and easy to handle, not liable to damage by the ordinary accidents of handling and use, simple, cheap, and easy to construct, and in which the wires or gratings are preserved from being withdrawn from their binding, in which the detachable bottom is secured against displacement by accident, and in which the sides of the sieve are braced in such a manner as to render their splitting or breaking down impossible.

To accomplish all of this, as well as to secure other advantages, the invention consists in certain novel and useful combinations or arrangements of parts, and in certain peculiarities of construction, all of which will be hereinafter rst fully described, and thenpointed out in the claims.

In the drawings, Figure l is a perspective View of a fragment of a riddle or sieve constructed in accordance with my improvements, the parts being broken away in order to afford a clear illustration of the several details of construction and ofthe general arrangement of parts. Figs. 2, I3, and 4 are partial sectional views of one edge of the detachable bottom, illustrating the manner of applying the metallic binding and indicating dii'erent stages approaching completion of the bottom-as, for

instance, in Fig. 2 the binding is simply bent around the edge of the wire grating, in Fig. 3 both the binding and enveloped portion of the grating are bent at right angles to the general surface, and in Fig. 4 the bent portion is shown as turned down upon the inner flat portion, ready to be bent and finally compressed, as indicated in Fig. 5. Fig. 5 is a vertical central section of the completed device With the several parts in place for use.

Like letters of reference, wherever they occur, indicate corresponding parts in all the figures.

A represents the wall or body of the riddle or sieve, made of wood, such as oak or any other wood in which the fiber is tough and strong, and which may be easily bent into the required shape, and in which, while insuring the necessary strength and durability required in an article of this nature, the riddle or sieve is still rendered cheap and easy to handle. The over-hoop Bis also made of wood, and nicely fits around the outside of the body of the sieve A.

Attached to the bottom of over-hoop B is an inner ledge or hoop, C, which is riveted or tacked, in the usual manner, to the over-hoop B. This ledge or hoop C is made of about the same thickness of material as the body of the sieve, and when placed in position makes a continuation of the body, leaving only space enough between the lower part of the body A and said ledge or hoop for holding the edge of the bottom or grating of the riddle or sieve when placed therein, thus forming a seat for said bottom or grating. The over-hoop B not only serves as a means otfolding theledge or hoop C up against the bottom or gratingof the riddle or sieve, but, extending, as it does, a'fconsiderable distance up the outside wall, A, it serves as a means of strengthening the same and rendering it less liable to damage from hard or continued usage.

At equal distances around the body A, I place metal braces or clamps, as shown at D. These may be used in yl`any number, as preferred, and may be made of brass, strap-iron, malleable iron, or any other material. They are turned or bent over the top ot' the body A, extend downwardly upon the inner side thereof, and a rivetis passed through the saine,

IOO

as shown at d, thereby securing them rmly in place. rIhe bent portion of the brace transmits all jar and strain to which the over-hoop B is subjected to the upper portion of the structure, and by use of a sufficient number of these braces or clamps the whole sieve is rendered firm and durable, each part being required to withstand a share of the strain upon the others. downwardly upon the outside of the body A to the over-hoop B, where they are bent outwardly far enough to pass over said hoop and down to within a short distance of the bottom thereof.

At a a hole is punched, drilled, or cast in the brace or clamp D in such a manner that when the over-hoop B is placed in position upon the body A a screw may be placed therein, passing through the brace and into the hoop B, thereby holding the parts firmly in position, but in such a manner that they may be easily and readily separated for the purpose of removing the bottom or grating when required for any reason. Inorder to withdraw the bottom it is only necessary to take out the screws at a and separate the frame or bodyA from the over-hoop B, which releases the bot' toni. These braces or clamps not only serve the purpose above specified, but are of such a nature and are placed in such a position that they greatly strengthen the walls of the riddle or sieve and render the same much less liable to injury when in use, and are made strong enough to bear the usual knocking against any solid object which such riddles or sieves are usually subjected to in order to remove any dirt or accumulations therein after use.

The sieve or riddle bottom E is made of wire-cloth, and is made removable from the body, so that when worn or damaged, or it is desired to substitute a bottom in which the meshes are of a different size, it may be changed or replaced, thus saving the expense of an entirely new sieve.

' Heretofore these removable wire-cloth bottoms have been bound with metal around the edge to prevent disarrangement of the wires, and in order to clamp the binding upon the bottom it has been provided with a swage or corrugation extending through the binding. I have found that this construction does not secure the wires of the wire-cloth bottoni in the metallic binding in the immovable manner desired, especially in the larger and heavier class of riddles or sieves. In order to obviate this objection and render the binding perfectly eticient for the purposes intended, I iirst place a band of metal, G, around the edge of the bottom E, same as ordinarily, and instead of swagin g it I turn it, together with a portion of the enveloped wires of the wire-cloth bottom,back upon itself,substantially as indicated at Fig. 4. This bending maybe accomplished in any preferred manner, and the binding may be assumed to take the position first shown in Fig. 2, then as in Fig. 3, and next as in Fig. 4.

These braces or clamps pass i After being bent as in Fig. 4, the binding and contained wires of the wire-cloth are firmly compressed or flattened by hammering or pressing, and, as will appear from a consideration of the construction, the wires of the wire cloth bottom are then firmly secured against withdrawal or lateral disarrangement-faults noticeable in all previous constructions of which I am aware. The bottoni thus bound exactly corresponds in size with the body or wall of the riddle or sieve A, and, fitting into the over-hoop B, finds a seat or rest upon the upper surface of the inner hoop or ledge, C, riveted or tacked thereto, and the hoops B and C being held firmly and securely to and against the body A by means of the braces or clamps D, the bottom E cannot be displaced by the weight of any load likely to be placed upon it, and the flattened binding coming in contact with the lower edge of the body A and the upper edge ofthe hoop or ledge C, there is no chance for the escape of the material through the riddle or sieve except through the bottom intended for that purpose.

Heretofore, in some constructions, these removable bottoms with a flat binding have been held in place in such a manner that the mate' rial being sifted found its way down in between the bottom and the wall or frameof the riddle or sieve. This objection is entirely overcome by the use of my improved construction.

I make no claim to the removable bottom merely as such, nor to a metallic binding upon the edge of the wire-cloth bottom for sieves Ste., as such constructions are well known and have long been used; but,

Having now fully described my invention, what I do claim as new, and desire to secure by Letters Patent, is-

l. In combination with the body of a riddle or sieve, the herein-described removable or detachable bottom,'havin g a metallic binding, as specified, the detachable over-hoop, provided with a ledge for the support of the bottom, and the over-hoop secured to the body by the removable screws, the whole being adapted to conne the binding between the said ledge and the bottom of the body and to release the bottom, in the manner and for the purposes explained.

2. The combination, with a riddle or sieve body, of an exterior projecting detachable hoop and a series of metallic braces bent to fit over the top of said projecting hoop, these parts being secured together and adapted to transmit the strain, substantially in the manner and for the purposes set forth.

3. In combination with the bodyA,the lower hoops, B and C, secured and held in place by the metallic braces or clamps D, substantially as shown and described.

4. In a sieve or riddle, the combination, with the removable wire bottom or grating, of the metallic binding bent over and enveloping a IOS IIO

portion of the bent edges of said bottom, the

binding and contained edge being flattened down upon the surface of the grating, substantially as shown, so as to form a finished flattened edge therefor, as and for the purposes set forth.

5. In combination with a removable-bottomed riddle or sieve, the metallic braces or clamps bent over the top of the body of the sieve and riveted thereto and extending down upon the outside thereof, all adapted to operate substantially as set forth and described.

6. As a new article of manufacture, the herein-described riddle or sieve, having a wooden body, A, detachable hoops B and C, removable bottom E, with attened metallic E. OLIVER.

Witnesses:

ARTHUR M. PIERCE, WORTH OseooD. 

